KR20220061898A - Biological data acquisition apparatus and biological data processing apparatus using the same - Google Patents

Abstract

An embodiment of the present invention relates to a biometric information acquisition device by being inserted into a living body. The device comprises: a balloon inserted into the living body and capable of being inflated and contracted; one or more electrodes positioned on the surface of the balloon; and one or more fine protrusions positioned on the surface of the electrodes to come in contact with the living body.

Description

Biometric information acquisition device and biometric information processing device using the same

The present technology relates to an apparatus for obtaining biometric information and an apparatus for processing biometric information using the same.

In order to visually observe the inside of the human body, the prior art biometric information acquisition device injects a chemical substance such as a contrast agent and observes it from the outside, or irradiates an ultrasonic wave and the like for observation.

In order to visually identify a lesion, etc., conventional devices such as MRI, CT, and ultrasound should be used, but these have low resolution, and in particular, where the lesion is located locally and information on the physical properties of the location, can be identified. there was no

The present technology is to solve the difficulties of the prior art, and it is one of the problems to be solved by the present technology to provide a technology capable of acquiring and processing biometric information using a minimally invasive or non-invasive method.

The present embodiment is a device for obtaining biometric information by being inserted into a living body, and the device includes: a balloon inserted into the living body and capable of inflating and contracting; and one or more electrodes positioned on the surface of the balloon.

Another embodiment is a biometric information processing device, the device comprising: a biometric information obtaining unit including a balloon that can be inflated and contracted by being inserted into a living body and one or more electrodes disposed on a surface of the balloon; It includes a processing unit for processing the additionally acquired biometric information.

According to one aspect of this embodiment, the biometric information obtaining device includes one or more microprotrusions positioned on the surfaces of the electrodes to contact the living body.

According to one aspect of this embodiment, the biometric information acquisition device is inserted into one or more of a blood vessel and a body cavity of a living body to acquire the biometric information.

According to one aspect of this embodiment, the electrodes include a working electrode and a counter electrode, wherein the working electrode and the counter electrode are oxidized in a living body in contact with the biometric information acquisition device. and detecting any one or more of current and voltage by a reduction reaction.

According to one aspect of the present embodiment, the microprotrusions disposed on the working electrode and the counter electrode invade the living body and the oxidation and reduction reactions occur.

According to one aspect of the present embodiment, the microprotrusions include a material that provides a corresponding electrical signal when deformed by an external force.

According to one aspect of this embodiment, the microprotrusions are coated with a soft material.

According to one aspect of the present embodiment, the microprotrusions include a mixture of a material and a soft material providing a corresponding electrical signal when deformed by an external force.

According to one aspect of the present embodiment, the fine protrusion has one of a pyramid and a cone.

According to one aspect of this embodiment, the electrodes include first and second electrodes to which an electrical signal is applied, and the electrical signal to detect an electrical signal formed by providing the electrical signal to the living body, and fine protrusions formed on the first electrode and the second electrode form a path for the electrical signal.

According to one aspect of the present embodiment, the electrical signal applied to the first electrode is any one of a voltage signal and a current signal, and the electrical signal detected by the second electrode is one of the voltage signal and the current signal.

According to any one aspect of the present embodiment, the fine protrusion is in the form of any one of a cylinder, a prism, a truncated cone, and a prismatoid.

According to one aspect of the present embodiment, the microprotrusions include a conductive material.

According to one aspect of the present embodiment, the microprotrusions include a swellable material that absorbs a biomaterial at a location where the biometric information acquisition device is located.

According to one aspect of this embodiment, the electrodes include a swellable material that absorbs a biomaterial at a location where the biometric information acquisition device is located.

According to one aspect of the present embodiment, the electrodes are spaced apart from each other in one or more pairs and positioned along the outer periphery of the balloon surface.

According to one aspect of the present embodiment, the biometric information acquisition device further includes an induction tube through which a fluid flows to inflate or contract the balloon, and a conducting wire connected to the electrode.

According to the present embodiment, the advantage that biometric information can be obtained minimally or non-invasively by being inserted into a living body is provided. Furthermore, the advantage of being able to easily acquire information on physical properties of a living body that could not be obtained with the prior art is provided.

1 is a perspective view showing an outline of a biometric information acquisition device according to the present embodiment.
FIG. 2 is a diagram schematically illustrating a biometric information processing device including a biometric information acquisition device inserted into a human body and a processor for processing the biometric information acquired by the biometric information acquisition device.
3 is a schematic cross-sectional view for explaining that the biometric information acquisition device of the present embodiment is inserted into a blood vessel and operates.
4A is a diagram illustrating a change in impedance measured while changing a frequency in a state in which lipids, etc. are not accumulated, and FIG. 4B is a diagram illustrating a change in impedance measured while changing a frequency in a state in which lipids, etc. are accumulated. .
5A and 5B are schematic cross-sectional views for explaining an embodiment in which electrochemical analysis is performed with the biometric information acquisition device of the present embodiment.
6A is a diagram illustrating an example of a device in which the biometric information acquisition device according to the present embodiment is inserted into the aorta, which is one of the cardiovascular systems, to detect the rigidity of the aorta, and FIG. 6B is a diagram illustrating electrodes and microprotrusions. am.
7A is a view illustrating an example in which the biometric information acquisition device according to the present embodiment is inserted into the aorta, which is one of the cardiovascular systems, to detect the hardness of the aorta, illustrating a state in which the microprotrusions are deformed by contact with the inner wall of the aorta It is a drawing. 7B is a view showing the detailed structure of the fine protrusion.
8 is a view schematically illustrating the operation of another embodiment in which the microprotrusions of this embodiment are formed of a swellable material and can be extracted to the outside after expanding by absorbing the biomaterial of the tissue that has contacted or penetrated.
9A is a diagram illustrating an example of simulating a blood vessel with arteriosclerosis, and FIG. 9B is a diagram illustrating a path of a current when an electrical signal is provided using the biometric information acquisition device 10 according to the present embodiment. , 9C and 9D are diagrams illustrating the results of detecting the impedance in the above-described experiment.
10A is a view showing a simulant blood vessel and a pig aorta in which 200 μm of animal fat is placed on the inner wall and stiffness is increased by performing a thawing cycle 6 times after freezing 10% PVA from the left, and FIG. 10B is this view It is a diagram illustrating a result of measuring mechanical properties with and without a fat component in a blood vessel with the biometric information acquisition device 10 according to the embodiment.

Hereinafter, this embodiment will be described with reference to the accompanying drawings. 1 is a perspective view showing an outline of a biometric information obtaining apparatus 10 according to the present embodiment. Referring to FIG. 1 , a biometric information acquisition device 10 is inserted into a living body to acquire biometric information, and a balloon 100 that is inserted into the living body and can expand and contract is located on the surface of the balloon 100 . two or more electrodes 200 and one or more microprotrusions 300 positioned on the surface of the electrodes to contact the living body.

In one embodiment, the biometric information acquisition device 10 is a cerebral blood vessel of a living body, vascular system such as cardiovascular system, esophagus, stomach, large intestine, small intestine, biliary tract, digestive cavities such as liver, nose, mouth, ear, airway, etc. Biometric information can be obtained by being inserted into body cavities such as respiratory cavities, urethra, and excretory cavities such as anus.

2 is a diagram schematically illustrating a biometric information processing device including the biometric information acquisition device 10 inserted into the human body and a processing unit 400 that processes the biometric information acquired by the biometric information acquisition device 10 . 1 and 2 , the biometric information processing apparatus includes: a balloon 100 inserted into a living body to obtain biometric information, and two or more electrodes 200 disposed on the surface of the balloon 100 . and a biometric information acquisition device 10 including one or more microprotrusions 300 disposed on the surfaces of the electrodes so as to be in contact with the living body, and a processing unit 400 for processing the biometric information obtained by the biometric information acquisition unit ) is included.

1 and 2 , the biometric information obtaining apparatus 10 includes a balloon 100 inserted into a blood vessel or a cavity of a living body. In one embodiment, the balloon 100 may have a different size according to the size of the object to be inserted. As an example, the balloon 100 inserted into a blood vessel such as cardiovascular or cerebrovascular may have a length of 1 to 5 cm and a diameter of 2 to 4 mm. As another example, the balloon 100 inserted into the esophagus may have a diameter of 1 to 3 cm, and may have different lengths and lengths depending on the insertion position as described above. That is, the diameter of the balloon 100 may be any one of 1 mm to 30 mm, and may vary according to a target for which information is to be acquired.

The balloon 100 may be expanded by introducing a fluid such as gas or liquid through the guide tube 110 , and may be contracted by flowing out of the introduced fluid. The balloon 100 does not rupture in the living body when it expands and contracts, and may be formed of a material that does not react with body fluids such as blood and gastric juice in the living body.

One or more electrodes 200 may be positioned on the surface of the balloon 100 . The electrode 200 is disposed so as not to cause an open circuit or a short circuit when the balloon 100 is expanded and contracted. In an embodiment, the electrode 200 may be formed by performing sputtering, deposition, or the like on the balloon 100 . The electrode 200 is also made of a conductive material and may be made of a material that does not react with body fluids such as gastric juice and blood. In an embodiment, the electrode 200 may be connected to a conductive wire w positioned in the guide tube 110 , and the conductive wire w may extend outside the living body and be connected to the processing unit 400 .

One or more fine protrusions 300 may be positioned on the surface of the electrode 200 . The microprotrusion 300 is an element in direct contact with a living tissue, and may have a different shape. In one embodiment, when the microprotrusion 300 invades a living tissue or is requested to be easily deformed by an external force, the shape of the microprotrusion 300 may be formed in the form of a pyramid and a cone formed with a pointed end. there is.

In another embodiment, when the microprotrusion 300 is requested to contact the living tissue without invasion into the living tissue, the shape of the microprotrusion 300 is a cylinder, a prism, a truncated cone, and The shape of any one of the prismatoids is preferable.

However, the shape of the fine protrusion 300 is merely an example, and when invasion into a living tissue is requested or it is requested to be easily deformed by an external force, the fine protrusion 300 is a cylinder or a prism. ), truncated cones, and prismatoids are not excluded. In addition, when invasion into living tissue is not requested, the shape of the microprotrusions 300 is not excluded from being in the form of a pyramid and a cone.

The fine protrusion 300 may have a different material according to the desired biometric information. In one embodiment, when the micro-protrusion 300 provides an electrical signal to a living tissue and it is requested to receive an electrical signal from the biological tissue, the micro-protrusion 300 preferably includes a conductive material.

In addition, if it is necessary for the fine protrusion 300 to output an electrical signal corresponding to the rigidity of the living tissue, it is preferable to include a material for outputting an electrical signal according to the degree of deformation of the fine protrusion 300 . For example, the fine protrusions 300 may include piezoelectric ceramic particles such as barium titanate or a piezoelectric material such as PVDF.

The processing unit 400 is connected to the biometric information acquisition device 10 and processes an electrical signal provided by the biometric information acquisition device 10 . In one embodiment, the processing unit 400 detects and processes an electrical signal obtained by connecting the conductive wire to the electrode 200 to obtain biometric information.

For example, the processing unit 400 may perform an impedance calculation from an electrical signal detected by driving a biometric information calculation program with an arithmetic device (not shown), calculation of the degree of hardening of the living body, and detection of a body material by an electrochemical reaction. In addition, the processing unit 400 may inflate or contract the balloon 100 to a desired pressure by introducing or outflowing the fluid through the guide tube 110 .

3 is a schematic cross-sectional view for explaining that the biometric information acquisition device 10 of this embodiment is inserted into a blood vessel and operated, and FIG. 4A is a change in impedance measured while changing the frequency in a state in which lipids, etc. are not accumulated. It is an exemplary view, and FIG. 4B is a view illustrating a change in impedance measured while changing a frequency in a state in which lipids and the like are accumulated. Referring to FIG. 3 , the biometric information acquisition device 10 is, for example, inserted into a blood vessel (V), expanded by the fluid provided through the guide tube 110, and is positioned on the first electrode 200a with fine protrusions ( 300) and the minute protrusions 300 positioned on the second electrode 200b are in contact with the inner wall of the blood vessel (V).

The processing unit 400 (refer to FIG. 2 ) applies an electrical signal to the first electrode 200a and the second electrode 200b connected through the conductive wire w (refer to FIG. 2 ). The blood vessel V in contact with the microprotrusions 300 forms a conductive path through which an electrical signal flows.

4A and 4B, when the impedance change of the conductive path is measured while changing the frequency of the electrical signal provided through the microprotrusions 300, lipids are accumulated or calcified in the blood vessels, resulting in a vulnerable plague. In this formed state, it can be seen that the change in the real and imaginary components of the impedance is greater than in the case where vulnerable plague (L) is not formed, and the amount of change corresponds to the size of the vulnerable plague (vulnerable plague). do.

An AC voltage is applied through the microprotrusions 300 positioned on the first and second electrodes 200, and an AC current signal is measured accordingly, or an AC current is applied through the microprotrusions 300, and accordingly By measuring the AC voltage signal, it is possible to determine the presence and size of the fragile hard plaque L formed in the blood vessel V.

When looking at a blood vessel image obtained by a conventional image analysis apparatus, the blood vessel is displayed in black, and only the narrowing of the blood vessel can be confirmed. Furthermore, accurate analysis is difficult even in the case of confirmation using MRI, OCT, or ultrasound equipment. However, according to the present embodiment, there is provided an advantage of being able to grasp the local lipid distribution in the blood vessel, the calcification and the formation of fragility plaques with high accuracy and sensitivity compared to the prior art. Furthermore, the advantage of being able to prevent an unexpected situation is provided by preemptively diagnosing a blood vessel with a risk of rupture due to arteriosclerosis, etc. using the present embodiment.

In an embodiment, a plurality of fine protrusions 300 may be formed on the first electrode 200a and the second electrode 200b. In this case, a plurality of conductive paths may be formed between the plurality of microprotrusions 300 positioned on the first electrode 200a and the plurality of microprotrusions 300 positioned on the second electrode 200b. From this, it is possible to more precisely grasp the lipid, calcareous and brittle hard plaque (L) located on the conductive path.

Also, FIG. 3 illustrates that the first electrode 200a and the second electrode 200b form one electrode pair. However, in an embodiment not shown, it is also possible to measure the impedance of the conductive path by arranging two or more electrode pairs.

5A and 5B are schematic cross-sectional views for explaining an embodiment in which electrochemical analysis is performed with the biometric information acquisition device of the present embodiment. In the embodiment shown in FIGS. 5A and 5B , the biometric information acquisition device 10 is inserted into a body cavity of a living body. Referring to FIG. 5A , the biometric information acquisition device 10 may include two electrodes, one of which may function as a working electrode 200w, and one counter electrode 200c ) can function as

In the embodiment illustrated in FIG. 5B , the biometric information obtaining device 10 may include three electrodes, each of which is a working electrode 200w, a counter electrode 200c and a reference electrode. electrode, 200r).

In the embodiment illustrated by FIGS. 5A and 5B , the biometric information obtaining device 10 is inserted into the living body and arranged to contact the target area C. As shown in FIG. The fine protrusions 300 may come into contact with the target area C, or may invade and contact the target area C as in the illustrated embodiment.

In the embodiment illustrated in FIG. 5A , a potential difference is formed by an electrochemical reaction such as oxidation or reduction reaction in the working electrode 200w and the counter electrode 200c, and a current by the reaction flows. The processing unit 400 may detect a potential difference and a current through the conducting wire w.

Referring to FIG. 5B , in the working electrode 200w and the counter electrode 200c, a potential difference is formed by an electrochemical reaction such as oxidation and reduction reaction, and a current by the reaction flows, but the electrical resistance of the target region C An error may occur due to a voltage drop (IRdrop). When the resistance value of the target region C is large or the flowing current is large, and for more precise measurement, the reference electrode 200r may be used.

In the case of measurement using three electrodes, a current flows between the working electrode 200w and the counter electrode 200c, and the potential of the working electrode 200w is adjusted and measured with respect to the reference electrode 200r. The potential difference between the working electrode 200w and the reference electrode 200r can be accurately measured regardless of the current value flowing through the electrochemical reaction.

As another example, when the working electrode 200w and the counter electrode 200c are included, more precise measurement is possible by using the counter electrode as a pseudo reference electrode.

In the illustrated embodiment, the processing unit 400 causes an electrochemical reaction such as oxidation and reduction reaction to occur in the working electrode, scans the potential difference due to the electrochemical reaction through the wire w, and the current caused by the electrochemical reaction to detect For example, the processing unit 400 detects a change in current at a specific potential while scanning from 0 to 1V in units of 10mV.

The sudden change in current at a specific potential is caused by the presence of a specific substance. Accordingly, the processing unit 400 may determine whether the material is located in the target area C and the amount of the material from the voltage at which the sudden change in current occurs.

According to the prior art, a region of interest is visually identified through an endoscope, and tissue within the region of interest is removed and grasped. In this process, tissue in the body cavity may be injured. However, according to the present embodiment, electrochemical analysis can be performed without making a wound on the region of interest using the biometric information acquisition device 10, and from this, the presence of lesions such as lipids, polyps, and cancer in the target region, The advantage of being able to identify a target protein, biomarker, etc. is provided.

6 and 7 are schematic cross-sectional views for explaining another embodiment of the apparatus for obtaining biometric information according to the present embodiment. 6A exemplifies an example in which the biometric information acquisition device according to the present embodiment is inserted into the aorta V, which is one of the cardiovascular system, to detect the rigidity of the aorta, and FIG. 6B shows the electrode 200 and the microprotrusion 300 ) is a more detailed diagram. Referring to FIG. 6A , the balloon 100 may be inserted into the aorta V without being sufficiently inflated. Accordingly, deformation does not occur in the microprotrusions 300 positioned on the first electrode 200d and the microprotrusions 300 positioned on the second electrode 200e.

Referring to FIG. 6B , the fine protrusion 300 may include an external force detection unit 310 and a soft coating unit 320 . The fine protrusion 300 including the external force detection unit 310 and the flexible coating unit 320 may be formed with a high aspect ratio so as to be easily deformed by an external force. Although the illustrated example is illustrated as a tetrahedron and a cone, it may be implemented in the form of a pillar, such as a cylinder, having a large height compared to the base area so as to be easily deformed by an external force.

In one embodiment, the external force detecting unit 310 may be made of a flexible material to easily deform when an external force is applied, and further, may be made of a material that provides an electrical signal according to the deformation. For example, the external force detector 310 may include piezoelectric ceramic particles such as barium titanate (BaTiO 3 ) or a polymer piezoelectric material such as PVDF.

The flexible coating unit 320 for coating the external force detecting unit 310 is coated with a soft material on the external force detecting unit 310 to prevent the fine protrusions 300 from unintentionally invading into blood vessels or body cavities and rupturing the corresponding tissue. can be formed by Furthermore, the flexible coating unit 320 may be formed of any one of a silicone elastomer material such as PDMS and Ecoflex, and a urethane-based soft polymer material.

According to another embodiment not shown, the microprotrusions 300 may form a piezoelectric ceramic particle such as barium titanate (BaTiO3) capable of forming an external force detection unit, a polymer piezoelectric material such as PVDF, and PDMS capable of forming a flexible coating portion And it may be formed of a composite material in which a silicone elastomer material such as Ecoflex and a soft polymer material based on urethane are mixed.

7A illustrates an example in which the biometric information acquisition device according to the present embodiment is inserted into the aorta (V), which is one of the cardiovascular systems, to detect the rigidity of the aorta, and FIG. It is a view illustrating a deformed state in contact with the side wall. Referring to FIG. 7A , when the biometric information acquisition device 10 is located in the target region, a fluid flows in through the guide tube 110 to inflate the balloon 100 . As the balloon 100 expands, the microprotrusions 300 come into contact with the inner wall of the blood vessel and deform.

The external force detection unit 310 and the flexible coating unit 320 output an electrical signal corresponding to the external force provided. The processing unit 400 may receive an electrical signal provided by the microprotrusion 300 and detect the hardness of the blood vessel.

For example, when the blood vessel is flexible, even when the balloon 100 expands and comes into contact with the microprotrusion 300 , not only the microprotrusion 300 but also the blood vessel V is deformed.

However, as elastin, which provides elasticity to blood vessels, gradually disappears due to factors such as arteriosclerosis and aging, blood vessels become hardened. Accordingly, when the balloon 100 expands so that the microprotrusion 300 comes into contact with the inner wall of the blood vessel V, the microprotrusion 300 is greatly deformed compared to the degree to which the blood vessel is deformed. Compared to the previous case, the magnitude of the external force applied to the microprotrusions 300 is increased, and the electrical signal output from the microprotrusions 300 is large. The processing unit 400 may detect the degree of hardening of the blood vessel V by detecting the volume of the fluid injected through the guide tube 110 and the electrical signal output from the microprotrusions 300 .

6 and 7 illustrate that two electrodes are positioned on the surface of the balloon 100 . However, this is only an embodiment, and two or more electrodes may be positioned on the surface of the balloon 100 . Furthermore, a plurality of fine protrusions 300 may be arranged in a line or an array on one electrode. The advantage of being able to measure hardness with high sensitivity and accuracy is provided through this arrangement structure.

In the prior art, a blood flow sensor is attached to a limb of a human body, and the blood flow is detected at a location where the blood flow is slow or fast to determine whether there is an abnormality in the blood vessel. However, even in the prior art, it is difficult to accurately determine which blood vessel is abnormal.

According to the present embodiment, an advantage is provided in that the biometric information acquisition device 10 according to the present embodiment is inserted into a blood vessel, and the hardening of the blood vessel can be detected non-invasively therefrom.

8 is a diagram schematically illustrating the operation of another embodiment. Referring to FIG. 8 , in the illustrated embodiment, the biometric information obtaining device 10 is inserted into a body cavity or blood vessel of a living body. The fine protrusions 300 may be formed of a swelling material, and for example, a hydrogel such as hyaluronic acid (HA), alginate, or methacrylate hyaluronic acid (MeHA), GelMA, etc. It can be formed into a photocurable hydrogel.

In the embodiment illustrated in FIG. 8 , it is exemplified that the fine protrusions 300 formed of a swelling material are positioned on the electrode 200, but according to another embodiment not shown, the electrode may be formed of a swelling material. can

The fine protrusions 300 made of a swellable material absorb the materials in the portion where they are located and expand. For example, in the region where the biometric information acquisition device 10 is located, the microprotrusions 300 may acquire tissues such as surrounding tissues, proteins, and body fluids. In addition, there is provided an advantage of being able to analyze immediately after obtaining biometric information using an electrode or microprotrusion made of a swellable material. In addition, there is provided an advantage in that the biometric information of the region where the biometric information acquisition device 10 is located can be widely grasped.

Experiment result

9A is a diagram illustrating an example of simulating blood vessels with arteriosclerosis. As illustrated in FIG. 9A, the fibrous capsule and blood vessel of the inner wall of the blood vessel were simulated with a gelatin layer and paraffin, respectively. The simulated blood vessel had an inner diameter of 10 mm and an outer diameter of 30 mm, and the thickness of the gelatin layer was designed to be 500 μm. 9B is a diagram illustrating a path of a current when an electrical signal is provided using the biometric information acquisition device 10 according to the present embodiment, and FIGS. 9C and 9D illustrate the result of detecting the impedance in the above-described experiment it is one drawing

Referring to FIG. 9C , it can be confirmed that the apparatus 10 for obtaining biometric information according to the present embodiment can detect a change in the magnitude of impedance and a change in the phase angle of the impedance depending on the frequency with and without the paraffin layer. .

FIG. 10A is a view showing a simulant blood vessel and pig aorta in which 200 μm of animal fat is placed on the inner wall and stiffness is increased by performing a thawing cycle 6 times after freezing 10% PVA from the left.

10B illustrates a result of measuring the degree of hardening of blood vessels with the biometric information acquisition device 10 according to the present embodiment. As shown, it can be seen that the largest peak-to-peak voltage difference of 55mV is shown in the simulated blood vessels in which the stiffness is increased by performing a thawing cycle 6 times after freezing 10% PVA having the highest hardness, which is the most It indicates that the hardness is high. Subsequently, it can be seen that the peak-to-peak voltage difference of 40 mV is shown in the blood vessels of the pig. In addition, it can be seen that the fat located in the mimic blood vessels models a vulnerable plague, and a peak-to-peak voltage difference of approximately 5 mV is formed. From the exemplified results, it can be seen that vulnerable plague can be detected according to this embodiment.

Although it has been described with reference to the embodiment shown in the drawings in order to help the understanding of the present invention, this is an embodiment for implementation, merely exemplary, and those of ordinary skill in the art will find various modifications and equivalents therefrom It will be appreciated that other embodiments are possible. Accordingly, the true technical protection scope of the present invention should be defined by the appended claims.

10: biometric information acquisition device 20: biometric information processing device
100: balloon 110: guide tube
200: electrode 300: fine protrusion
310: external force detection unit 320: soft coating unit

Claims (27)

A device inserted into a living body to obtain biometric information, the device comprising:
a balloon that is inserted into the living body and can expand and contract; and
Biometric information acquisition device including one or more electrodes positioned on the surface of the balloon. According to claim 1,
The biometric information acquisition device is
Biometric information acquisition device including one or more microprotrusions positioned on the surface of the electrodes to contact the living body. According to claim 1,
The biometric information acquisition device,
A biometric information acquisition device that is inserted into one or more of a blood vessel and a body cavity of a living body to acquire the biometric information. 3. The method of claim 2,
The electrodes include a working electrode and a counter electrode,
The operating electrode and the counter electrode detect at least one of current and voltage caused by oxidation and reduction reactions occurring in a living body in contact with the biometric information acquisition device. 5. The method of claim 4,
The microprotrusions disposed on the working electrode and the counter electrode are
A biometric information acquisition device in which the oxidation and reduction reactions occur by invading a living body. 3. The method of claim 2,
The microprotrusions are
A biometric information acquisition device comprising a material that provides a corresponding electrical signal when deformed by an external force. 7. The method of claim 6,
The microprotrusions are
A biometric information acquisition device coated with a soft material. 7. The method of claim 6,
The microprotrusions are
A device for obtaining biometric information, comprising a mixture of a material and a soft material providing a corresponding electrical signal when deformed by an external force. 5. The method of any one of claims 6 and 4,
The microprotrusions are
A device for obtaining biometric information having one of a pyramid and a cone. 3. The method of claim 2,
The electrodes are
and a first electrode and a second electrode to which an electrical signal is applied, and the electrical signal is provided to the living body to detect an electrical signal formed,
The biometric information obtaining apparatus is configured to form a path for the electric signal by the living body and the microprotrusions formed on the first electrode and the second electrode. 11. The method of claim 10,
The electrical signal applied to the first electrode is any one of a voltage signal and a current signal,
The electrical signal detected by the second electrode is one of the voltage signal and the current signal. 11. The method of claim 10,
The microprotrusions are
A device for obtaining biometric information in any one of a cylinder, a prism, a truncated cone, and a prismatoid. 11. The method of claim 10,
The microprotrusions are
A device for obtaining biometric information including a conductive material. 3. The method of claim 2,
The microprotrusions are
A biometric information acquisition device comprising a swellable material that absorbs a biological material at a location where the biometric information acquisition device is located. According to claim 1,
The electrodes are
A biometric information acquisition device comprising a swellable material that absorbs a biological material at a location where the biometric information acquisition device is located. According to claim 1,
The electrodes are
In one or more pairs, the biometric information acquiring device is spaced apart from each other and positioned along the outer periphery of the balloon surface. According to claim 1,
The biometric information acquisition device,
an induction tube through which fluid flows in and out to expand or contract the balloon;
The biometric information acquisition device further comprising a conductive wire connected to the electrode. A biometric information processing device, the device comprising:
A biometric information obtaining unit including a balloon that is inserted into a living body and expandable and contractable and one or more electrodes disposed on a surface of the balloon;
and a processing unit for processing the biometric information acquired by the biometric information acquisition unit. 19. The method of claim 18,
The biometric information acquisition unit
The biometric information processing device further comprising one or more microprotrusions positioned on the surfaces of the electrodes so as to come into contact with the living body. 19. The method of claim 18,
The biometric information acquisition unit
A biometric information processing device that is inserted into one or more of a blood vessel and a body cavity of a living body to acquire the biometric information. 20. The method of claim 19,
The microprotrusions are
in one of a pyramidal and conical shape,
The electrodes include a working electrode and a counter electrode,
The processing unit detects any one or more of current and voltage caused by oxidation and reduction reactions occurring in a living body in contact with the bio-information acquisition device in the working electrode and the counter electrode to detect lipids and polyps in the location where the bio-information acquisition unit is located. , a biometric information processing device for detecting whether or not cancer has occurred. 20. The method of claim 19,
The microprotrusions are
It contains a material that provides a corresponding electrical signal when deformed by an external force, and is coated with a flexible material,
the processing unit
A biometric information processing device for detecting a degree of tissue hardening at a location where the biometric information acquisition unit is located by detecting a deformation of the microprotrusion due to an external force as the balloon expands. 20. The method of claim 19,
The microprotrusions are
It contains a mixture of a material and a soft material that provides a corresponding electrical signal when deformed by an external force,
the processing unit
A biometric information processing device for detecting a degree of tissue hardening at a location where the biometric information acquisition unit is located by detecting a deformation of the microprotrusion due to an external force as the balloon expands. 20. The method of claim 19,
The microprotrusions are
Any one of a cylinder, a prism, a truncated cone, and a prismatoid,
The electrodes are
and a first electrode and a second electrode to which an electrical signal is applied from the processing unit, and the electrical signal is provided to the living body to detect an electrical signal formed and provide the electrical signal to the processing unit,
The living body and the microprotrusions formed on the first electrode and the second electrode form a path for the electrical signal. 25. The method of claim 24,
The processing unit,
providing the electrical signal applied to the first electrode and the second electrode, and receiving the electrical signal detected by the first electrode and the second electrode;
A biometric information processing device for calculating the electrical impedance of the path. 20. The method of claim 19,
The microprotrusions are
It contains a swellable material that absorbs the biomaterial at the location where the biometric information acquisition device is located,
The processing unit analyzes the biological material absorbed by the microprotrusion to analyze the material. 19. The method of claim 18,
the electrode is
A biometric information processing device comprising a swellable material that absorbs a biological material at a location where the biometric information acquisition device is located.

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